by pan » Fri Jun 20, 2025 11:16 am
Code: Select all
root@h1:/home/jovyan# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
4: h1-eth0@if3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 7e:0e:df:c0:fe:40 brd ff:ff:ff:ff:ff:ff link-netns r
inet 192.168.1.100/24 scope global h1-eth0
valid_lft forever preferred_lft forever
inet6 fe80::7c0e:dfff:fec0:fe40/64 scope link
valid_lft forever preferred_lft forever
root@h1:/home/jovyan# ip r
default via 192.168.1.1 dev h1-eth0
192.168.1.0/24 dev h1-eth0 proto kernel scope link src 192.168.1.100
Code: Select all
oot@h2:/home/jovyan# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
6: h2-eth0@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 0e:dd:8a:86:01:5d brd ff:ff:ff:ff:ff:ff link-netns r
inet 10.10.1.100/24 scope global h2-eth0
valid_lft forever preferred_lft forever
inet6 fe80::cdd:8aff:fe86:15d/64 scope link
valid_lft forever preferred_lft forever
root@h2:/home/jovyan# ip r
default via 10.10.1.1 dev h2-eth0
10.10.1.0/24 dev h2-eth0 proto kernel scope link src 10.10.1.100
Code: Select all
root@r:/home/jovyan# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
3: r-eth0@if4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether ce:6a:93:00:79:79 brd ff:ff:ff:ff:ff:ff link-netns h1
inet 192.168.1.1/24 scope global r-eth0
valid_lft forever preferred_lft forever
inet6 fe80::cc6a:93ff:fe00:7979/64 scope link
valid_lft forever preferred_lft forever
5: r-eth1@if6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 26:47:e1:d9:3a:b1 brd ff:ff:ff:ff:ff:ff link-netns h2
inet 10.10.1.1/24 scope global r-eth1
valid_lft forever preferred_lft forever
inet6 fe80::2447:e1ff:fed9:3ab1/64 scope link
valid_lft forever preferred_lft forever
8: r-eth2@if7: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether b2:2b:f6:05:c3:09 brd ff:ff:ff:ff:ff:ff link-netnsid 2
inet 172.16.1.1/24 scope global r-eth2
valid_lft forever preferred_lft forever
inet6 fe80::b02b:f6ff:fe05:c309/64 scope link
valid_lft forever preferred_lft forever
root@r:/home/jovyan# ip r
default via 172.16.1.2 dev r-eth2
10.10.1.0/24 dev r-eth1 proto kernel scope link src 10.10.1.1
172.16.1.0/24 dev r-eth2 proto kernel scope link src 172.16.1.1
192.168.1.0/24 dev r-eth0 proto kernel scope link src 192.168.1.1
Code: Select all
pan@jupyter:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host noprefixroute
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast state UP group default qlen 1000
link/ether ee:df:ae:3c:36:a8 brd ff:ff:ff:ff:ff:ff
inet 10.236.104.36/32 brd 10.236.104.36 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::ecdf:aeff:fe3c:36a8/64 scope link
valid_lft forever preferred_lft forever
7: host-nat@if8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether c2:6c:c6:0c:41:a1 brd ff:ff:ff:ff:ff:ff link-netns r
inet 172.16.1.2/32 scope global host-nat
valid_lft forever preferred_lft forever
inet6 fe80::c06c:c6ff:fe0c:41a1/64 scope link
valid_lft forever preferred_lft forever
pan@jupyter:~$ ip r
default via 169.254.1.1 dev eth0
169.254.1.1 dev eth0 scope link
172.16.1.0/24 via 172.16.1.2 dev host-nat
[code]root@h1:/home/jovyan# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
4: h1-eth0@if3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 7e:0e:df:c0:fe:40 brd ff:ff:ff:ff:ff:ff link-netns r
inet 192.168.1.100/24 scope global h1-eth0
valid_lft forever preferred_lft forever
inet6 fe80::7c0e:dfff:fec0:fe40/64 scope link
valid_lft forever preferred_lft forever
root@h1:/home/jovyan# ip r
default via 192.168.1.1 dev h1-eth0
192.168.1.0/24 dev h1-eth0 proto kernel scope link src 192.168.1.100 [/code]
[code]oot@h2:/home/jovyan# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
6: h2-eth0@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 0e:dd:8a:86:01:5d brd ff:ff:ff:ff:ff:ff link-netns r
inet 10.10.1.100/24 scope global h2-eth0
valid_lft forever preferred_lft forever
inet6 fe80::cdd:8aff:fe86:15d/64 scope link
valid_lft forever preferred_lft forever
root@h2:/home/jovyan# ip r
default via 10.10.1.1 dev h2-eth0
10.10.1.0/24 dev h2-eth0 proto kernel scope link src 10.10.1.100 [/code]
[code]root@r:/home/jovyan# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
3: r-eth0@if4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether ce:6a:93:00:79:79 brd ff:ff:ff:ff:ff:ff link-netns h1
inet 192.168.1.1/24 scope global r-eth0
valid_lft forever preferred_lft forever
inet6 fe80::cc6a:93ff:fe00:7979/64 scope link
valid_lft forever preferred_lft forever
5: r-eth1@if6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 26:47:e1:d9:3a:b1 brd ff:ff:ff:ff:ff:ff link-netns h2
inet 10.10.1.1/24 scope global r-eth1
valid_lft forever preferred_lft forever
inet6 fe80::2447:e1ff:fed9:3ab1/64 scope link
valid_lft forever preferred_lft forever
8: r-eth2@if7: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether b2:2b:f6:05:c3:09 brd ff:ff:ff:ff:ff:ff link-netnsid 2
inet 172.16.1.1/24 scope global r-eth2
valid_lft forever preferred_lft forever
inet6 fe80::b02b:f6ff:fe05:c309/64 scope link
valid_lft forever preferred_lft forever
root@r:/home/jovyan# ip r
default via 172.16.1.2 dev r-eth2
10.10.1.0/24 dev r-eth1 proto kernel scope link src 10.10.1.1
172.16.1.0/24 dev r-eth2 proto kernel scope link src 172.16.1.1
192.168.1.0/24 dev r-eth0 proto kernel scope link src 192.168.1.1[/code]
[code]pan@jupyter:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host noprefixroute
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast state UP group default qlen 1000
link/ether ee:df:ae:3c:36:a8 brd ff:ff:ff:ff:ff:ff
inet 10.236.104.36/32 brd 10.236.104.36 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::ecdf:aeff:fe3c:36a8/64 scope link
valid_lft forever preferred_lft forever
7: host-nat@if8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether c2:6c:c6:0c:41:a1 brd ff:ff:ff:ff:ff:ff link-netns r
inet 172.16.1.2/32 scope global host-nat
valid_lft forever preferred_lft forever
inet6 fe80::c06c:c6ff:fe0c:41a1/64 scope link
valid_lft forever preferred_lft forever
pan@jupyter:~$ ip r
default via 169.254.1.1 dev eth0
169.254.1.1 dev eth0 scope link
172.16.1.0/24 via 172.16.1.2 dev host-nat[/code]